563 search results - page 93 / 113 » Computing approximate PSD factorizations |
PODS
2001
ACM
14 years 10 months ago
2001
ACM
We consider the complexity of join problems, focusing on equijoins, spatial-overlap joins, and set-containment joins. We use a graph pebbling model to characterize these joins com...
PERCOM
2006
ACM
14 years 9 months ago
2006
ACM
In this paper, we study the problem of utility maximization in multi-hop wireless systems. To study the effect of wireless interference constraints on the utility maximization pro...
SODA
2010
ACM
14 years 7 months ago
2010
ACM
We consider the problem of detecting a vector of symbols that is being transmitted over a fading multiple?input multiple?output (MIMO) channel, where each symbol is an ?th root of...
ICASSP
2009
IEEE
14 years 4 months ago
2009
IEEE
Due to their computational efficiency and strong empirical performance, semidefinite relaxation (SDR)–based algorithms have gained much attention in multiple–input multiple...
INFOCOM
2009
IEEE
14 years 4 months ago
2009
IEEE
—The emerging wireless relay networks (WRNs) are expected to provide significant improvement on throughput and extension of coverage area for next-generation wireless systems. W...